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US 12,708,892 B2Granted
Shape memory poly(β-hydroxythioether) foams rapidly produced from multifunctional epoxides and thiols
AssigneeOhio University
InventorAndrew Weems
Life of this patent
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Abstract
A shape memory polymer foam comprising a reaction product of a reaction of an epoxide and a thiol monomer in the presence of an organobase is provided. In addition, a method of making the shape memory polymer foam is provided. The method includes reacting an epoxide with thiol monomers in the presence of an organobase to form the shape memory polymer foam.
Claims14
A method of making a shape memory polymer foam, the method comprising:
- reacting an epoxide with a thiol monomer in the presence of an organobase to form the shape memory polymer foam;
- wherein the reacting the epoxide with the thiol monomer is further in the presence of acetone.
A method of making a shape memory polymer foam, the method comprising:
- reacting an epoxide with a thiol monomer in the presence of an organobase, a salt, and acetone to form a shape memory polymer foam-salt composite
- removing at least a portion of the salt from the shape memory the shape memory polymer foam-salt composite to form the shape memory polymer foam.
A method of making a shape memory polymer foam, the method comprising:
- reacting pentaerythritoltetra(3-mercaptopropionate) and bisphenol A diglycidyl ether in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene to form a filament;
- printing the filament into a form using a 3-D printer.
A method of making a shape memory polymer foam, the method comprising:
- reacting an epoxide with a thiol monomer in the presence of an organobase to form the shape memory polymer foam;
- wherein the organobase comprises 1,8-diazabicyclo[5.4.0]undec-7-ene.
Dependencies are inferred from the claim text.